Pavel Pereslegin created IGNITE-24025:
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             Summary: Sql. Support drop schema catalog command
                 Key: IGNITE-24025
                 URL: https://issues.apache.org/jira/browse/IGNITE-24025
             Project: Ignite
          Issue Type: Improvement
          Components: sql
            Reporter: Pavel Pereslegin


In order to handle SQL statements like
{noformat}
DROP SCHEMA [IF EXISTS] <schema name identifier> [CASCADE | RESTRICT];
{noformat}

We need to introduce DropSchemaCatalogCommand.

CASCADE drop behavior forces dropping all its objects together with the schema 
at once.
RESTRICT drop behavior drops schema if empty or fails otherwise. 
Default behavior: RESTRICT.



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